On 04/26/2018 09:21 AM, Jason H wrote:
1. Roland, can you not use a yellow background?
I use the yellow background to read because it is easier on my eyes. Did
not know Thunderbird was transmitting it as well. I never see it on the
list.
2. All the "real" computers are dead. Either you're bi-endian (PPC,
ARM) or little endian (x86), or extinct.
The real computers are still out there, still being made, and still
running critical systems.
3. Network byte order, and that the dumps put the bytes in the right
order are the only arguement need to be made ;-). Otherwise you might
as well redefine web hex colors to be BGRA "Ain't no body got time for
that!"
No. That class was created to serve a specific purpose WHICH STILL
EXISTS TODAY. Focusing on a hobby platform is viciously ill-advised.
*Sent:* Thursday, April 26, 2018 at 8:38 AM
*From:* "Roland Hughes" <[email protected]>
*To:* [email protected]
*Subject:* Re: [Interest] Interest Digest, Vol 79, Issue 20
On 04/26/2018 03:44 AM, Thiago Macieira wrote:
On Wednesday, 25 April 2018 06:53:26 PDT Roland Hughes wrote:
What I'm trying to tell you is there was and still is a legitimate
reason to have a QDataStream which can write big-endian. Don't just rip
it out. Make it some kind of settable boolean flag in the class. There
is no way to know just how many of these things are still out there and
are still being developed. Most were in the world of defense
contractor/military
I never claimed it isn't. In fact, there is a flag to set the endianness.
When I said "most machines are little-endian", I was referring to machines
Qt
runs on and, therefore, would use QDataStream. The fact that the default is
big endian is short-sighted. It should default to little-endian.
No. Taking a disposable chip's view of the world is short sighted and
completely invalidates the historical reason for the class. It was
created to feed real computers which operate in Big-Endian.
Read up on seismic testing or stuff happening with the Super Colliding
Super Conductor. In the case of SCSC many thousands of disposable chip
"sensors" running an application to pick up one or a few certain
readings are streaming that stuff back to the only box which can
handle them, big iron. IBM was never the fastest computationally, but
when it comes to data throughput to/from disk they are a 14" city
water main and their nearest competitor is happy the one day per week
they achieve being a fire hose.
Here's a delightful little book about oil well drilling. I've read
mine many times.
http://iliosresources.com/downloads/come-drill-a-well-in-my-backyard/
In today's world "Big Oil" uses satellites to identify "potential"
places with oil reserves. For anything above water they then go
through the long, arduous journey of getting permits to do seismic
testing. Such testing involves drilling thousands of shot-holes
(depending on the size of the potential reserve). Some have actual
shots put in them with a blast sensor built using a disposable chip
behind them to control/ensure/measure the blast. (Dry fires happen and
the test analysis software has to be made aware of it.) A large
percentage of these sensors will simply be lost, hence the need for
disposable chips. They used to use Z-80, then for years INTEL x86 was
the ultimate throw away chip. Now it is moving to ARM since you can
get a Raspberry Pi for $15 or less when bought in 100 quantities.
Don't assume the class was created for use within the world of the
disposable chip.
That particular class was designed so Qt on disposable chips could
provide real computers an actual service.
Oh, here's a wee bit to add.
No company or person is allowed to _own_ seismic data. There is an
industry standard format where binary data is big-endian. Upon
request, for a nominal media and shipping fee, if you have it you have
to provide it to whoever asks. Geologically and environmentally, we
don't want 100+ companies drilling 1000+ shot-holes in the exact same
county. What you are allowed to own is the analysis software you develop.
Do NOT change the default behavior of that class. It wasn't written
for use on an iDiot Phone. It's design was and still is far reaching.
Had it not existed, Qt would have had a dramatically shorter growth
arc, possibly not surviving long enough to make it onto iDiot Phones.
Changing the default behavior of the class would be viciously short
sighted.
Sorry, I don't mean to sound insulting, but, in this particular case
you are a grain of sand on the beach trying to remove the ocean
because it gets you wet.
--
Roland Hughes, President
Logikal Solutions
(630)-205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us/
http://onedollarcontentstore.com
_______________________________________________ Interest mailing list
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--
Roland Hughes, President
Logikal Solutions
(630)-205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us/
http://onedollarcontentstore.com
_______________________________________________
Interest mailing list
[email protected]
http://lists.qt-project.org/mailman/listinfo/interest
